Supported modified alumoxane catalyst activator

US6696379B1 · kind B1 · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Edmund M. Carnahan · Fresno, US
• Grant Berent Jacobsen · Houston, US
• Eugene Y. Chen · Midland, US
• James C. Stevens · Richmond, US

Key dates

• Filing date: Feb 11, 2000
• Grant date: Feb 24, 2004
• Expiry date: Feb 11, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F4/6592
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A supported catalyst composition comprising:A1) a mixture of aluminum containing Lewis acids of the formulas:[(—AlQ1—O—)z(—AlArf—O—)z′] and(Arfz″Al2Q16−z″) where;Q1 independently each occurrence is C1-20 alkyl;Arf is a fluorinated aromatic hydrocarbyl moiety of from 6 to 30 carbon atoms;z is a number from 1 to 50;z′ is a number from 1 to 50; andz″ is an number from 0 to 6; orA2) a fluorohydrocarbyl-substituted alumoxane compound corresponding to the formula:R1—(AlR3O)m—R2, wherein:R1 and R2 independently each occurrence is a C1-40 aliphatic or aromatic group or a fluorinated derivative thereof or R1 and R2 together form a covalent bond;R3 independently each occurrence is a monovalent, fluorinated organic group containing from 1 to 100 carbon atoms or R1, with the proviso that in at least one occurrence per molecule, R3 is a monovalent, fluorinated organic group containing from 1 to 100 carbon atoms, andm is a number from 1 to 1000;B) a Group 3, 4, or Lanthanide metal complex containing from 1 to 3 &pgr;-bonded anionic or neutral ligand groups; andC) a support.